Wi-Fi Board; Main Board - Haier GE UltraFresh GFD55ESSN Technical Service Manual

Wi-Fi Board

The Wi-Fi board is powered by the main board
from the J602 connector. It is located/mounted
on the housing of the main board.
Touch Board Diagnosing
If the Wi-Fi board is not working, check for
approximately 5 VDC from pin 1 to pin 5 at the
J604 connector on the main board. If no voltage,
check the harness and connectors. If good,
replace the main board. If voltage is present,
replace the Wi-Fi board.

Main Board

Removing the Wi-Fi Board
1. Remove the harness connector from the Wi-Fi
board.
2. Push downward on the bottom clip securing
the Wi-Fi board to the main board housing.
Then lift the board away from the main board
housing.
Main Board
The main board is located under the top panel,
mounted on a bracket on the left side.
Main Board Diagnosing
Check for 120 VAC at the outlet. If voltage is
there, check for 120 VAC between the black
and white wires at the J101 connector pins 2
and 3 on the main board. If no voltage is found,
check the wire harness and connector integrity.
If voltage is found at the main board, but no
heartbeat LED flashing on the main board, check
the high limit thermostat on both gas and electric
models and/or the safety thermostat on gas
dryers. If thermostats, harness and connectors
are good, replace the main board.
Clip
– 50 –
Main
Board
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